12993867249 has 32 divisors (see below), whose sum is σ = 19083423744. Its totient is φ = 7799090880.

The previous prime is 12993867203. The next prime is 12993867283. The reversal of 12993867249 is 94276839921.

It is not a de Polignac number, because 12993867249 - 2¹² = 12993863153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12993867192 and 12993867201.

It is not an unprimeable number, because it can be changed into a prime (12993867449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445242 + ... + 1454204.

It is an arithmetic number, because the mean of its divisors is an integer number (596356992).

Almost surely, 2^12993867249 is an apocalyptic number.

It is an amenable number.

12993867249 is a deficient number, since it is larger than the sum of its proper divisors (6089556495).

12993867249 is a wasteful number, since it uses less digits than its factorization.

12993867249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9397.

The product of its digits is 11757312, while the sum is 60.

The spelling of 12993867249 in words is "twelve billion, nine hundred ninety-three million, eight hundred sixty-seven thousand, two hundred forty-nine".